mirror of
https://github.com/Rafostar/clapper.git
synced 2025-08-29 23:32:04 +02:00
5289b2f0a4
GStreamer does not take pixel aspect ratio into account for overlay rectangles. If we do so, we end up with subtitles that are displayed off-center. Behave like any other GStreamer sink on this matter.
105 lines
4.4 KiB
C
Vendored
105 lines
4.4 KiB
C
Vendored
/*
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* Copyright (C) 2022 Rafał Dzięgiel <rafostar.github@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CLAPPER_IMPORTER (gst_clapper_importer_get_type())
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#define GST_IS_CLAPPER_IMPORTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CLAPPER_IMPORTER))
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#define GST_IS_CLAPPER_IMPORTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CLAPPER_IMPORTER))
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#define GST_CLAPPER_IMPORTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CLAPPER_IMPORTER, GstClapperImporterClass))
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#define GST_CLAPPER_IMPORTER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CLAPPER_IMPORTER, GstClapperImporter))
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#define GST_CLAPPER_IMPORTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CLAPPER_IMPORTER, GstClapperImporterClass))
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#define GST_CLAPPER_IMPORTER_CAST(obj) ((GstClapperImporter *)(obj))
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#define GST_CLAPPER_IMPORTER_DEFINE(camel,lower,type) \
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G_DEFINE_TYPE (camel, lower, type) \
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G_MODULE_EXPORT GstClapperImporter *make_importer (void); \
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G_MODULE_EXPORT GstCaps *make_caps (gboolean is_template, \
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GstRank *rank, GStrv *context_types);
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typedef struct _GstClapperImporter GstClapperImporter;
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typedef struct _GstClapperImporterClass GstClapperImporterClass;
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstClapperImporter, gst_object_unref)
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#endif
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struct _GstClapperImporter
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{
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GstObject parent;
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GstCaps *pending_caps;
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GstBuffer *pending_buffer, *buffer;
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GPtrArray *pending_overlays, *overlays;
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GstVideoInfo pending_v_info, v_info;
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gboolean has_pending_v_info;
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GdkTexture *texture;
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GdkRGBA bg;
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};
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struct _GstClapperImporterClass
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{
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GstObjectClass parent_class;
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gboolean (* prepare) (GstClapperImporter *importer);
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void (* share_data) (GstClapperImporter *src,
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GstClapperImporter *dest);
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void (* set_caps) (GstClapperImporter *importer,
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GstCaps *caps);
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gboolean (* handle_context_query) (GstClapperImporter *importer,
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GstBaseSink *bsink,
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GstQuery *query);
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GstBufferPool * (* create_pool) (GstClapperImporter *importer,
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GstStructure **config);
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void (* add_allocation_metas) (GstClapperImporter *importer,
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GstQuery *query);
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GdkTexture * (* generate_texture) (GstClapperImporter *importer,
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GstBuffer *buffer,
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GstVideoInfo *v_info);
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};
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GType gst_clapper_importer_get_type (void);
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gboolean gst_clapper_importer_prepare (GstClapperImporter *importer);
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void gst_clapper_importer_share_data (GstClapperImporter *importer, GstClapperImporter *dest);
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gboolean gst_clapper_importer_handle_context_query (GstClapperImporter *importer, GstBaseSink *bsink, GstQuery *query);
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GstBufferPool * gst_clapper_importer_create_pool (GstClapperImporter *importer, GstStructure **config);
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void gst_clapper_importer_add_allocation_metas (GstClapperImporter *importer, GstQuery *query);
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void gst_clapper_importer_set_caps (GstClapperImporter *importer, GstCaps *caps);
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void gst_clapper_importer_set_buffer (GstClapperImporter *importer, GstBuffer *buffer);
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void gst_clapper_importer_snapshot (GstClapperImporter *importer, GdkSnapshot *snapshot, gdouble width, gdouble height);
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G_END_DECLS
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